Wiseco Crankshaft Kit for the Yamaha YZ250X and YZ250 Two Strokes

Wiseco’s bottom-end rebuild kits help save time and money for your dirt bike, ATV, or UTV bottom-end rebuild. Available for many popular applications, these kits contain a crankshaft assembly, main bearings, and a bottom-end gasket kit, all in one box under one part number.

• Includes complete crankshaft assembly, main bearings, and complete bottom-end gasket and seal kit in one box
• Elevated engineering and quality control measures to ensure reliable service
• OEM quality main bearings and rod bearings for smooth operation and reliable longevity
• Precision machined crank webs for ultimate strength and durability
• Copper-plated, heat-treated, and shot-peened connecting rod to remove residual stress and smooth surface blends
• Kit Includes:  Crankshaft Assy, Bottom End Gasket #WB1051, Main Bearing #B5011

Fitment:

• 2016 - 2025  Yamaha YZ250X

• 2002 - 2025  Yamaha YZ250

If you have questions about fitment, please 
email us at:  TMBR MOTO